richter



3 Sheets-:Sheet 1.

(No Model.)

K RICHTER MACHINE FOR MAKING BOXES.

Paten ted Aug 19, 1890.

MN Q I fiwenior:

W pas awilliwen fer (No Model.) 3 Sheets-Sheet 2.

K. RICHTER. MACHINE FOR MAKING BOXES.

No. 434,526. Patented Aug. 19, 1890.

(No Model.) 3 Sheets-Sheet 3.

K. RICHTER.

MAOHINB FOR MAKING BOXES.

No. 434,526. Patented Aug. 19, 1890 Q mm" Q: J l v T EEK? In ll w M mQzwzzgzmie]:

MOI/66] UNITED STATES- PATENT OFFICE.

KARL RICHTER, or HERNALS, NEAR VIENNA, AUSTRIA-HUNGARY, ASSIGNOR OFTWO-THIRDS TO LOWIT & 00., OF SAME PLACE.

MACHINE FOR MAKING BOXES.

SPECIFICATION forming part of Letters Patent No. 434,526, dated August19, 1890.

Application filed January 10, 1890. Serial No. 336.600. (No model.)

able others skilled in the art to which it appertains to make and usethe same, reference being had to the accompanying drawings, and toletters or figures of reference marked thereon, which form a part ofthisspecification. 7

Referring to the drawings,Figure 1 is a top plan view, and Fig. 2 is aperspective view, of a machine embodying my invention, which relates tothat class of machines especially designed for the manufacture of platesor dishes from blanks of tin or other suitable material,- but which by asubstitution of proper dies may be employed for the production ormanufacture of other articles, the stripper-plate on the left of themachine being removed, and Fig. 3 is a longitudinal sectional elevationof the machine.

. The object of the invention is to provide means for rapidly andeconomically making articles of the class referred to, and insimplifying the construction of the operative devices; and to these endsthe invention consists in structural features and combinations ofcooperative elements, as will now be fully described.

In the drawings, a indicates the drivingshaft that is suitablygeared tothe driven or operative shaft a. The latter shaft carries an eccentricc, that has guide-flanges c at each end formed on its edges and works inthe oblong aperture or eye of an eccentricstrap d. To theeccentric-strap d are connected two die-carriers or plunger-rods g andg',that are guided in their reciprocating movements imparted thereto bythe eccentric through the medium of the strap in bearings e and e,respectively.

Insteadof securing the die-carrier rods to the eccentric-strap d theymay form an integral part thereof, which construction is preferred. Eachrod carries a male die It and h, detachably secured thereto by means ofa setscrew 3, so that the dies may be readily removed, and others ofdifferent dimensions or form substituted. These male dies co-operatewith female dies 1' i, of which one is shown in Fig. 2, said dies 1 11being secured in holders or housings j and j and adapted to be adjustedtherein by means of set-screwsf and f. These female diest' r" are alsodetachably connected with their holders so as to adaptthem for removaland substitution of others therefor. The die-holders j and 7" are eachprovided with a slotted lateral extension j and 7' respectively, in theslot of which operates a feed-slide 0, rigidly connected with aguide-rod r, that is guided in its reciprocating movements in a bearingformed in the end of a standard 3. In the front face of the lateralextension or arm of the die-holders is formed an aperture, in which isfitted a cylinder 1;, that is partly open at top for the ready insertionof the blanks B. The said blanks are fed into the feed-slot through theopening in the front face of the lateral extension of the female-dieholders j and j by means of a piston w, the rod w whereof is connectedto one arm :13 of a bell-crank lever X, said arm being slotted andconnected to the piston-rod by means of a bolt and nut. From the arm 00of the bell-crank lever X is suspended a Weight W, that keeps the pistonin contact with the blanks B, and feeds the same into the feed-slot asthey are displaced by the feed-slide 0.

A reciprocating motion is imparted to the feed-slide through the mediumof a crank O on shaft (1, the arm of which has alongitudinal slot 0,into which extends an arm m of a connecting-rod m that is pivoted upon aslide-bar n. The slide-bar n is guided in its movements in suitablebrackets b and its and nut 15 the radial arm q is secured to thesegment, and by means of which the relative position of the arm q isadjusted in order to properly time the movements thereof. To the upperend of spindle a is secured a slotted arm q, into the slot of whichextends a pin or bolt *r, projecting from the under side of theguide-rod 1'. From the front face of the female-die holders j and j, andcentrally above the die-seata like pin being secured to the die-holderbelow the die-seat out of the wayof the opening in the table throughwhich the stamped article falls-projects a pin On these pins 70' isloosely mounted a stripper-plate 7c, provided with an opening for thepassage of the male-die carrier or rod 9 or 9, so that as the said rodsrecede from the female die the finished article carried along therewithis stripped off and falls through asuitable opening 0 in the table ofthe frame into a receptacle or to the floor. The stripper-plates k arecentered on the pins 70', on which they slide freely and are detachablyand adjustably secured to the table T, on which the operative devicesare mounted. To this end the plates are provided with a foot k throughwhich passes a set bolt or screw that also passes through a slot in thetable, so that the plates 70 can be adjusted toward or from the femaledies within certain limits. By this means stripper-plates having anopening of a diameter corresponding with that of a particular die may besecured and adjusted in position when the machine is used for makingarticles either of different form or the dimension of which varies, thefemale-die holders being also detachably secured to the table '1.

Instead of the means described fordetachably connecting the plates 70with and adj usting the same on the pins in, the opening in the saiddisks or plates 70, through which the pin 70 passes, may bescrew-threaded and the pin 7c correspondingly threaded, therebydispensing with the foot 70 and the set bolt or screw.

The operation of the machine is as follows: The male-die carriers are sotimed in their movements as that when one moves toward its female diethe other recedes, and the feedslides 0 are timed in their movements tocarry a blank to the female die during the mood ing motion of themale-die carrier, or said feed-slides may be so timed as to feed a blankto said female die while the male die is moving toward it, so that theoperation of feeding the blanks and stamping the articles is practicallyan uninterrupted one. The feedcylinders being filled with blanks and theshaftarevolved, one of the male-die carrierssay the carrier g-moves tothe female die 2'', in which a blank has previously been placed, theblank being shaped between the dies. During this movement of thedie-carrier g the other die-carrier g recedes from its female die, whilethe feed-slide 0, that feeds the blank to the female-die holder j,advances and carries the blank to said die through the slot or passagein its holder, said blank havin g been previously fed into the slotthrough the medium of the piston 10. Of course while the slide 0 is inits forward position the feedaperture for the blanks is closed therebyand is uncovered as the slide again returns to its normal position,allowing the piston w to feed another blank, the diameter of thefeedslot being such as to admit of free motion of a blank along the sameunder the impulse of the feed-slide 0, so that but one blank at a timecan be fed to the slot. During the receding or negative motion of thecarrier g and the advancing or positive motion of the carrier g, thefeed-slide for the female-die holder j advances and feeds a blank to thedie 2" to be stamped to shape, when the carrier g again advances, theseoperations taking place alternately.

It will of course be readily understood that the machine would operatejust as well with a single pair of dies and actuating mechanism, and theadvantages derived from the duplication of the operative elements areobvious. 0n the other hand, it will also be obvious that, instead ofweighting the pistons 11; to cause the same to exert a constant pressureupon the blanks B, a helical spring may be mounted on the piston-rodintermediate of the piston and outer cylinder-head, as shown in dottedlines in Fig. 1, at the right of the machine.

Having now described my invention, what I claim, and desire to secure byLetters Patent, is-

1. In a machine of the class described, the combination, with male andfemale die oarriers, the latter carrier being provided with an extensionat right angles to its horizontal axis, the said extension having anarrow vertical slit or slot opening into the said femaledie carrier andwith a feed-opening inits front face communicating with said slot, of ablankholder connected with said feed-opening, a

piston for feeding the blanks to the feed-slot, a feed-slide for feedingthe blanks from the slot to the female-die carrier, a revoluble shaft,and suitable intermediate connections adapted to reciprocate themale-die carrier and feedslide at right angles to each other in ahorizontal plane, substantially as described.

2. In a machine of the class described, the combination, with astationary die-holderhaving a lateral extension provided with a verticalfeed-slot opening into said holder, the adjusting-screw f, for adjustingthe die within its holder, a feed-slide for feeding the blank from theslot to the holder, a blank-holder, and a feed-piston adapted toautomatically feed the blanks from the blank-holder to the slot in theextension of the die-holder, of a maledie carrier, a revoluble shaft,and intermediate connections adapted to impart a horizontalreciprocating motion to the male-die car- 'rier and feed-slide at rightangles to each other, substantially as described.

3. In a machine of the class described, the combination, with twostationary female-die holders arranged to face each other, of twoconnected male-die carriers adapted to be reciprocated between saidfemale-die holders and to co-operate therewith in shaping the blanks,substantially as described.

4. In a machine of the class described, the combination, with twostationary female-die carriers arranged to face each other, of twomale-die carriers, a revoluble shaft interposed between said carriers,an eccentric on said shaft, and an eccentric-strap connected to bothmale-die carriers to reciprocate the samc'between the female-diecarrier, substantially as described.

5. In a machine of the class described, the combination, with twostationary female-die carriers arranged to face each other and having alateral extension provided with a feed slot or passage, and a feed-slidearranged in said passage, of two male-die carriers, arevoluble shaftinterposed between said carriers, an eccentric on said shaft, aneccentric-strap connected to both male-die carriers to reciprocate thesame between the female-die holders, and intermediate mechanismconnecting the revoluble shaft with the feed-slides and adapted toimpart to them a reciprocating motion in the passage of the extensionsof the stationary die-holders, substantially as described.

6. In a machine of the class described, the combination, with twostationary die-holders arranged to face each other and having a lateralextension provided with a feed slot or passage and with a feed-apertureat right angles to said' passage, a blank-holder connected with saidfeed-aperture, a feed-piston adapted to feed the blanks to the passagein said extensions, and a feed-slide arranged in said passage, of twomale-die carriers, a revoluble shaft interposed between the carriers,

an eccentric on said shaft, anceccentric-strap connected to bothmale-die carriers to reciprocate the same between the female-dieholders, and intermediate mechanism connecting the shaft with thefeed-slides and adapted to impart to them a reciprocating motion in the.passage of the extensions of the stationary die-holders, substantiallyas described.

7. In a machine of the class described, the combination, with twostationary die-holders arranged to face each other and having a lateralextension provided with a feed slot or passage and with a feed -apertureat right angles to said passage, a blank-holder connected with saidfeed-aperture, a feed-piston adapted to automatically feed the blanks tothe passage in said extensions, and a feedslide arranged in saidpassage, of two maledie carriers, a revoluble shaft interposed betweenthe carriers, an eccentric on said shaft, an eccentric-strap connectedto both male-die carriers to reciprocate the same between the female-dieholders, and intermediate mechanism connecting the shaft with thefeed-slides and adapted to impart to them a reciprocating motion in thepassage of the extensions of the stationary die-holders, substantiallyas described.

8. The combination, with the feed-slide 0, the slotted radial armq,connected with the slide, the rock-spindle u, the slotted radial arm q,and the rocking bar a, of the slotted segment Q and the nut and bolt t,by means of which said radial arm q is adj ustably secured to thesegment, substantially as and for the purpose specified.

In testimony whereof I affix my signature in presence of two witnesses,

KARL RICHTER. Witnesses:

RUDOLF VON PLANK, J ULIUS GOLDSOHMIDT.

